The $2$-ft border surrounds the $12 \times 10$ patio, adding $2$ ft on each side: $\text{Outer} = (12 + 4)(10 + 4) = 16 \times 14 = 224 \text{ ft}^2$ $\text{Patio} = 12 \times 10 = 120 \text{ ft}^2$ $\text{Border} = 224 - 120 = 104 \text{ ft}^2$